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Confidence: Medium · Source: FCC ULS · As of 2026-09-12

W5OSU callsign genealogy

Currently held by SPRINGER, TIM L

The FCC publishes a previous_call_sign on every amateur license — a self-link to the licensee's prior callsign. Following those links produces the chain below.

Previous callsigns

Older callsigns held by W5OSU's current licensee, walking backwards.

  1. KC5OGOactive· T
    SPRINGER, BETTY AOKgranted 2018-07-31
  2. KD5CVYcancelled· T
    SPRINGER, BETTY Acancelled 1998-10-27

Successor callsigns

Callsigns held now by people who previously held W5OSU.

No current licensee on record previously held this callsign.

← Back to W5OSU License history →